{"name":"Amazon Price History User Track","description":"Track Amazon product price history, deal scores, and price insights for any ASIN. Uses crowd-sourced user price tracking data. Input: `asin` (10-character Amazon ASIN, e.g. B0916N2LPZ), optional `parent_asin` (parent ASIN if different from variant). Returns: `asin`, `title`, `brand`, `current_price` (cents), `list_price` (cents), `deal_score` (0-100, higher = better deal), `product_url`, and `product_details`."}